About 45 years ago I re built 650 Triumph twins without having a torque wrench, never any problems.K&N has marked the box that the filter comes in pretty specifically as to wrench use.
As to torquing an oil filter...stop it!
After you have your new filter filled with fresh oil and the O-ring seal coated with a light film of oil,
screw the filter on to the engine until the seal contacts the mounting surface.
then tighten the filter, by hand, an additional 1/2 to 3/4 turn.
Triumph has an entire crew of OCD manual writers who have a specific torque for EVERYTHING!
Note the torque value for the plastic windscreen screws used on my Tiger 1050.